nasal septum
The nasal septum separates the left and right airways in the nose, dividing the two nostrils. It is depressed by the Depressor septi nasi muscle. [WP,unvetted]. [ http://en.wikipedia.org/wiki/Nasal_septum ]
Term info
- MA:0000285
- EHDAA:6809
- NCIT:C33160
- AAO:0000559
- EHDAA2:0004104
- UMLS:C0027432 (ncithesaurus:Nasal_Septum)
- SCTID:181197004
- FMA:54375
- GAID:115
- Wikipedia:Nasal_septum
- EMAPA:17608
- AAO:0010135
- MESH:D009300
- EHDAA2:0001234
- VHOG:0000017
uberon_slim, pheno_slim
A median dividing wall, sagittally directed, which divides the nasal cavity into the right and the left nasal fossae. [Dorian_AF, Elsevier's_encyclopaedic_dictionary_of_medicine, Part_B:_Anatomy_(1988)_Amsterdam_etc.:_Elsevier][VHOG], Medial, vertical plate that separates the nasal capsules.[AAO], Medial vertical wall between nasal capsules.[AAO]
Whatever the common ancestor of the lamprey and gnathostomes may have looked like, it most likely possessed a neural-crest-derived premandibular ectomesenchyme closely associated with the NHP. Invention of the jaw subsequently required a space for the nasal septum and maxillary process to develop, which might have been provided by subdivision of the NHP into the nasal placode and the hypophysis (diplorhiny, the state of bilaterally separated nasal openings, would also have been a prerequisite for this).[well established][VHOG]
http://upload.wikimedia.org/wikipedia/commons/6/65/Gray854.png
We follow AAO in making this part of the nasal skeleton
septum nasi, septum mobile nasi, septum of the nose, septal cartilage
uberon
UBERON:0001706
Nasal septum
Term relations
- septum
- neural crest-derived structure
- develops from some intermaxillary process
- contributes to morphology of some nose
- part of some nasal skeleton
- part of some ethmoid region